Favorable

Unfavorable

Hazard ratio

95% CI

p Value

Gender

Female

Male

0.611

0.258 - 1.371

0.240

Smoking

Never

Current/Former

1.037

0.452 - 2.358

0.932

Histology

Adenocarcinoma

Others

0.274

0.152 - 0.488

<0.001

pT status

pT1

pT2 - 3

0.844

0.477 - 1.528

0.570

pN status

pN0

pN1 - 2

0.305

0.158 - 0.598

0.001

serum CEA

Normal

High

0.414

0.244 - 0.709

0.002

GOLD

non-COPD + GOLD 1

GOLD 2 - 3

0.737

0.360 - 1.713

0.452